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Zen is a school of Mahayana Buddhism that originated in China during the Tang dynasty as Zen Buddhism. Zen school was strongly influenced by Taoism and developed as a distinct school of Chinese Buddhism.

In InterSystems Data Platform Zen is a name for MVC web application framework for rapid software development.

Documentation.

Question Brian Shingle · Aug 7, 2017

Greetings!

I'm new to Zen reports and I'm wondering if what I'm trying to do is possible.  I have a classmethod  that accepts three parameters to generate an xml file from a global.    I've set up my Report Definition to call the ClassMethod that generates the .xml file; however, I'm trying to figure out how to pass the parameters to that ClassMethod from the Report Definition.  The example in the documentation shows parameter passing using SQL (which I'm not using), so I'm curious if this will work.  

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Question Peter Kopp · Jun 4, 2018

When using the link component on a ZEN page the default behavior is for the link to appear to the right of the tablepane row. Has anybody changed this behavior so the link appears to the left of the tablepane row? Thank you in advance for any and all feedback.

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Question Rizmaan Marikar · Oct 13, 2019

Hi All,

I have a ZEN report, which gives a PDF output, i want to generate this report programmatically, save to a location in the disk. Here is my method so far

ClassMethod GenerateReport(ReportID, ReportClass, P1, P2, P3, P4, P5, P6, P7, P8, P9, PUser, PUserID, PUserProfileID, mode = 2, ByRef outputfile = "") As %Status{set filename=""set ZenClassName=$piece(ReportClass,".cls")set oRpt=$classmethod(ZenClassName,"%New") set oRpt.RUID=##class(websys.Report).GetRUID(P1,P2,P3,P4,P5,P6,P7,P8,P9,PUser,PUserID,"",PUserProfileID)set FileExt=.
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Question Andy Stobirski · May 18, 2022

Hi all

I have a Zen page which displays the contents of a table. One of the columns is a file path to a file on a local disk.

Is it possible, on a Zen page, to allow that file that described by the file path to be downloaded when a hyperlink is clicked on?

Cheers

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Question Aaron Laferty · Aug 14, 2025

Hi all,

I’m running into an issue with a %ZEN.Component.tablePane in a Zen page.

We have:

  • A fully styled table with all columns defined
  • A backend query (SearchMessages) that accepts multiple filter parameters
  • A set of input fields at the top of the page for filtering (text, date, and checkboxes)

We’re trying to run the query from a button click using a client-side method (runSearch()) that collects the filter values, sets them as parameters, and calls executeQuery().

The problem is that the table does not update at all Old rows remain, or sometimes nothing appears.

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Question Fabio Goncalves · Dec 17, 2015

I am trying to define the charset for a JQM Application and it is not working. I have tried the following options without success:

Method %OnDrawHTMLMeta() As %Status
{
              Write "<meta name=""viewport"" content=""width=device-width, initial-scale=1.0,maximum-scale=1, user-scalable=no""/>"
              Write "<meta http-equiv=Content-Type content=text/html; charset=utf-8 />"
              Quit $$$OK
}
Method %OnDrawHTMLMeta() As %Status
{
              Write "<meta name=""viewport"" content=""width=device-width, initial-scale=1.
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Question Laura Cavanaugh · Jul 29, 2016

I'm getting the above error.  My zen page calls other javascript methods  and other server methods just fine.  But when I call my  method, I get the error.  Yes, I've tried making it look exactly like the methods that work.  But for some reason, it doesn't seem to know that DoLogout is a zen method. 

Anyone ever get this error?

THanks

L

for example

ClientMethod logout() [ Language = javascript ]  {   zenPage.DoLogout();  }

Method DoLogout() [ZenMethod]   {   //blah blah  }

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Question Robert Harris · Nov 13, 2017

"Help me, Obi Wan Kenobi"?

I’ve hit the wall. I’m a one person shop who wants to start developing Cache on a mac using Eclipse/Atelier, after using Studio for the last 5 years. I’ve installed the 1.1 beta plugin, watched 6 or 7 videos from the September conference, tried several times to work through the cheat sheets, only to have connection issues or compilation issues, so at this point, I’m feeling very frustrated. The videos were interesting, but generally didn’t work as tutorials for fundamental programming operations, for me.

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Question Arun Kumar · Oct 15, 2018

Hi All,

Actually, I'm developing few restful API's. I want to create a authentication tokens and display it on my login restful API. If I'm using CSP sessionId, how can I validate the session Id's in another or continues restful API's. else, is there any other approach to handle this task. 

My Primary goal is, I have to integrate 2 different front end applications. One is Zen framework another one is web pages from Python. 

If any lead, it would be appreciated. 

Thanks,

Arun Kumar Durairaj. 

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Question ED Coder · Jan 22, 2021

I am able to display my query result in the table pane, but I want to update it based on user click but it doesnt work. Can this be done? Below is what I am doing but it doesnt change my value on clicking. Would appreciate some guidance on this

I have ondblclick = zenPage.SelectItem

ClientMethod selectItem(id, time) [ Language = javascript ]
{

    table this.getComponentById('tablename');
    var data table.selectedIndex;
    var rowval table.getRowData(data);
    var valuep new zenProxy();
           valuep.TXTFLAG rowval["TEXT"];
    zenPage.ToggleTextFlag(pP);

    var table this.

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Question Marco Blom · Apr 2, 2016

Hi,

I am working on a DataGrid based upon ZenTest.Datagrid.cls

I want to save data after changes on a row.

The existing samples do not explain how to save changes on data in a grid.

I have tried something like zen(‘json’).save

Does anybody has some sample code?

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Question Sebastian Thiele · Nov 11, 2016

Hi,

I try to programmatically create a parameter for a dataCombo ZEN Component (which is in turn created on the server side at runtime).

Set tParm = ##class(%ZEN.Auxiliary.parameter).%New()
Set tParm.id = "pRegion#"_pExamContainerCount, tParm.name = "pRegion#"_pExamContainerCount

Set tExam = ##class(%ZEN.Component.dataCombo).%New()
Set tExam.id = "Exam#"_pExamContainerCount, tExam.label = "Untersuchung", tExam.queryClass = "Inventory.ServiceCatalog", tExam.queryName = "QGetExaminations", tExam.showEmpty = "false", tExam.size = "52", tExam.onchange = "zenPage.updateExamDescription(zenThis.

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Question Syed M · Jul 27, 2021

Hi all,
    We have a session values in a cache method and need to get those values in a client method (JavaScript).
   
Eg : 
    ClassMethod Method1()
{
    Set %session.Data("Param1")="Data 1"
}

ClientMethod onloadHandler [Language = javascript]
{
   var ret = zenPage.getSessionValues();
}

ClassMethod getSessionValues() As %String [zenMethod]
{
   Set Data = $G(%session.Data("Param1"))
   Quit Data
}

This is the code we implemented. But the problem is getSessionValues() method isn't called.
We need to know how to call a class method from client method.

Thanks,
Syed M

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Question Megumi Kakechi · Jul 11, 2016

Hello,

One of our AP would like us to provide the file upload/download sample code by using ZEN Mojo.

I already provided them the attached "upload-sample".

I tried to create the "download-sample" in a similar way, but I couldn't do it yet.

Does anyone have a good idea/sample about this?

I'd like to download the server side file(e.g. c:\temp\nene.jpg) into client machine with a OpenFileDialog(image.png).

Thank you in advance.

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Question Sebastian Thiele · Jul 31, 2018

Hi everybody,

we have some legacy ZEN applications build upon CSS2 style definitions. We moved the application due to an upgrade to a newer version of cache (2017.2.1). Anyway I have in mind that in one of the prior relases css3 style interpretation was enforced by ZEN and you could explecitly tell the framework to use CSS2 by setting a global. Anyway I can´t found any hints in the docs on that. Does anyone of the %ZEN gurus have this in mind?

best regards,

sebastian

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Question ED Coder · Jan 6, 2021

I am new to zen pages, and trying to see how to get the value of a control.

Below is what I have

<combobox id="comboboxEdit" label="Select">
<option value="1" text="1" />
<option value="2" text="2" />
</combobox>

<button id="appointments" label=" " caption="Fetch" onclick="zenPage.Fetch();hidden="false"/>


ClientMethod Fetch() [ Language = javascript ]
{

// how can I get the value of the controls here? can I do something like document.getElementById()?

}

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Question Andy Stobirski · Sep 5, 2022

Hi All

I'm building a ZEN page that will dispay HL7 from a database, and am currently displaying it an textarea.

 Is the HL7 viewer that is displayed when HL7 message is selected in a visual trace available as an out of the box tool I can plug into a webpage?

Andy

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Question Steve Shaw · Jan 21, 2016

Hi,

I'm trying to create a Zen Report that, when rendered to PDF has a header on every page that includes some items from the group that I'm iterating over in the <body>.  I can't use <header> as that only displays once for each iteration, even if that spans more than one page, but <pageheader> seems to be independent of <body> so again doesn't work.

Cheers,

Steve.

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Question Peter Kopp · Sep 1, 2016

Good morning, I have a ZEN application being served up through a CSPGateWay. That ZEN application is made up of two ZEN pages. One ZEN page uses a zenLink to call the other ZEN page(see below #1). The ZEN page that is called contains a tab group with one tab. That tab contains a tif image. I have components on the called ZEN page that execute JavaScript to perform simple image manipulations - zoom and rotate(see below #2). Those simple image manipulations have stopped working. If I load the called ZEN page directly AND use a fully qualified domain name, the simple image manipulations work!

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Question Muhammad Awan · Apr 5, 2019

Greetings,

Is there any default exception handling feature available in Zen report? I am working on a report that comprises of several different composites report (%ZEN.Report.Display.composite). I am incorporating several composites into the main Zen report, If any composite fails or encounters an issue such as issue with the sql statement or class method which i am using to fetch the data, the report (pdf) fails and shows a Zen error. It is very hard to find an exact composite or code that causes the error as Zen report displaying a generic Zen Error without any details.

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Question Nezla · Sep 13, 2023

Hi Guys,

I've a popup zen page to upload files using the input tag and submit button as below :

<html>
<input type="file" size="80" name="FileStream" class="button" id="fileUpload" />
</html>
<!--imageclickbutton id="btnUpload" caption="Upload" width="90" height="30" onclick="zenPage.

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Question Steve Pisani · May 19, 2016

Hi -

Let's say I want to override the HTML that is generated by provided ZEN Mojo Helper Plugins I use the onloadHandler method of my document page, retrieving elements, and modifying them using jQuery syntax.

For example, I'm using bootstrap, and, I want  the <button> element automatically generated with the use of the $navbar layout object, to collapse/expand a different <DIV> on my page, to the default one it produces. 

Is this the correct spot and approach to use ? 

thanks

Steve

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